Answer:
anytime no promble don't you look to big
Step-by-step explanation:
kk
 
        
             
        
        
        
-7x+y=42
y=42+7x 
5x+13y=66
Substitute for y (meaning put 42+7x into the equation above instead of y because they are equal - see second line of my answer above)
5x+13[42+7x]  = 66
5x +546 = 66
5x=66-546
5x=-480
x=-480/5
x=-96
        
             
        
        
        
Answer:
can you please give more info
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-6
Step-by-step explanation:
She added a negative number with a positive number
 
        
                    
             
        
        
        
Answer:
The video is blocked but you can type your question on here1
Step-by-step explanation: